A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

How many Watermelons are there in the below picture?

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

Identify the hidden meaning behind this picture?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

ENEMY = 2 * LINK
LINK + 2 = HELL

Then what will be TAXI + HELL? Select from the options below:
a) ROTTEN
b) DANGER
c) HEAVEN
4) MORTAL

How can a man go eight days without sleep?